Device for operating wln dow-blinos



(No Model.)

W. H. PAULDING.

DEVIGE FOR OPERATING WINDOW BLINDS, &c- No. 410,440. Patented Septig, 1889.

UNITED STATES PATENT OFFICE.

\VILLIAM HENRY PAULDING, OF PEEKSKILL, NE'W YORK.

DEVICE FOR OPERATING WINDOW-BLINDS, 84.0.

SPECIFICATION forming part of Letters Patent No. 410,440, dated September 3, 1889.

Application filed April 11, 1888.

To all whom it may concern.-

Be it known that LWILLIAM HENRY PAULD- ING, a citizen of the United States, and a resident of Peekskill, in the county of \Vestchester and State of New York, have invented certain new and useful Improvements in Devices for Operating lVindow-Blinds, &c.; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, which form a part of this specification, and in which Figure l is a perspective view of a windowblind embodying my improvement. Fig. 2 is a vertical transverse sectional view of the same on the line y y, Fig. 1; and Fig. 3 is a detail View of the device for releasing and locking the spring-roller.

Like letters of reference denote corresponding parts in the several figures.

This invention has relation to means for operating blinds, window-shades, &c., and has for its object to provide a simple and efficient mechanism whereby the blind or shade may be readily raised or lowered, substantially as will be hereinafter more fully described, and particularly pointed out in the claim.

Reference being had to the accompanying drawings, the letter A denotes the windowcasing, and B the blind.

In the upper end of the casing or in proximity thereto, as the case may be, is journaled a spring-roller C, of any approved constructi0n-that is to say, a roller provided with a spring mechanism at one or both ends;

and as I do not claim any particular form or construction of spring-roller I have not deemed it necessary to enter into any further details regarding its construction, as this class of rollers is well known.

Immediately below the springroller O and journaled in suitable brackets or supports C, secured to the outer sides of the casing, are auxiliary rollers F, which derive their motion from the roller 0 by means of the bands or belts G, which are preferably made of elastic material to maintain a proper tension and prevent undue stretching during long-con- Serial No. 270,322. (No model.)

tinned work of the device. This PGCl'lllztl'COlb struction will be found expedient in cases where it is not convenient to locate the springroller proper within the window-casing or where the window-casings are so close together that one spring-roller may be used for the purpose of operating the shades or blinds of two or more windows, in which case each of these windows of course is provided with its appropriate independent roller F, the series of two or more rollers F being connected by the belts or bands G to the single operating roller, which must in that case be of sufficient length to reach across both windows. In this manner a single spring-roller may be used for the purpose of operating two or more blinds or shades, instead of having a separate spring-roller for each of them, the said springroller being released by means of a cord 0, which connects with a releasing device at the end of the roller. This device consists of a drum G, which fits over the end of the roller and has a spring-pawl Gr mounted therein, which engages with the teeth 0 on the cap 0 of the roller. To the outer end of the pawl is secured the cord 0, which passes down to within convenient reach of the operator. Thus it is only necessary to pull the cord,when the spring-roller will be released and the blinds raised. In raising the blinds the spring within the roller spends its force and is re- Wound or placed under tension further to operate the curtains through the agency of the belts G, which when the blinds are drawn down revolve the spring-roller and thus rewind the spring.

The blinds B are connected to the auxiliary rollers by means of hoisting cords or tapes D, which pass through suitable openings in the slats of the blind, and are secured at their lowerends to the cross-bar E of the shade or blind proper and at their upper ends to the circumference of the said rollers, the upper or supporting slats D of the blind being secured to the auxiliary rollers by means of tapes D which pass around the said rollers and are secured to the said slats for the purpose of holding the blind in position against dropping down.

In this illustration I have only shown two hoisting cords or tapes for each blind; yet I desire it to be understood that I do not limit myself to any particular number, as this will necessarily depend upon the size and style of the window to which my improvement is to be attached. Thus in narrow windows a single hoisting-cord is all that will be required, while in windows or easements of considerable width it may be found desirable to use two or more. In practice I prefer to use for the hoisting-cords thin metallic tapes, which pass through the slots in each of the slats; but I do not of course limit myself to any particu lar material for these tapes or hoisting cords.

In order to hold the slats of the blinds at a certain distance apart, I employ tapes or hands F, and to these I secure the said slats in any suitable manner.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

In a device for operating window-blinds, the combination of a spring-actuated roller located adjacent to the upper part of the window, a series of independent auxiliary rollers parallel with the main roller,bands for connectin g the auxiliary with the main roller, whereby motion may be imparted to each of the auxiliary rollers by the rotation of the main roller. window shades or blinds below the auxiliary rollers, hoisti n g-cords conn ected at their lower ends to the cross-bar of the blinds and at their upper ends to the auxiliary rollers, tapes secured to the supporting -slats and passing around the auxiliary rollers, and means, substantially as described, for releasing the spring-roller to cause it to raise the blind, substantially as described.

In testimony that I claim the foregoing as my own I have hereunto affixed my signature in presence of two witnesses.

WILLIAM HENRY PAULDING.

Witnesses:

L. B. CATHART, CHAS. W. SOHAFFER. 

